<!DOCTYPE html>
<html>
<head>
<script>
  function loaded() {
    var f = document.getElementById("x");
    f.removeChild(f.firstChild);
  }
</script>
</head>
<frameset rows="*,*" id="x" onload="loaded()"
 ><frame src="data:text/plain,PASS"
 ><frame src="data:text/plain,PASS"></frameset>
</html>
